This chapter presents the modelling and optimization techniques commonly used in
engineering applications especially in Laser Micromachining process. Design of Experiment
DOE (Response Surface Method and Taguchi), Artificial Neural Network (ANN), Genetic
Algorithm (GA), and Particle swarm optimization (PSO) and mixed techniques are explained
briefly. Furthermore, a review of laser micromachining processes parameters optimization was
studied. Recent researches which used different approaches for modelling and optimization
was presented.